Product Description:

The CSH01.1C-PB-NNN-NNN-NNN-NN-S-NN-FW is an I/O and communication extension card produced by Bosch Rexroth Indramat for the CSH Advanced Controllers series. Installed in drive inverters or automation racks, the unit conditions analog feedback, switches digital signals, and links the motion system to a higher-level PLC over PROFIBUS. By combining relay, probe, and serial channels in a compact format, it simplifies field wiring and synchronizes machine cycles in industrial automation cells.

In operation, the board presents 160 kΩ of input resistance on each differential analog channel, minimizing loading on sensors. Two analog outputs are available, each factory-limited to 5 V, 1 mA so downstream drive circuitry is not overdriven. On the digital side, sixteen inputs are accepted at 24 V, 3 mA, while eight sourcing outputs deliver 24 V, 0.5 A for contactors and opto-isolated loads. Two probe inputs capture encoder marker or registration events with a fast 1 µs response, supporting dual-axis homing. A D-Sub 9-pin female connector carries the PROFIBUS-DP fieldbus, and a separate RS-232 port is provided for service diagnostics. One onboard relay rated for DC 24 V at 1 A supplies a dry contact for safety chain feedback.

At startup, the module draws 4 A of inrush current before settling to a typical consumption of 9.5 W, a figure useful for cabinet thermal calculations and power-budget planning. Cyclic command and diagnostic traffic is carried over PROFIBUS-DP, and the onboard timing hardware accepts telegrams with a maximum 100 ms pulse width, aligning with slow PLC scan rates when necessary. By combining this bus layer with the relay contact, twin probe lines, and the RS-232 maintenance channel, the board coordinates drive enabling, registration capture, and serial diagnostics without external interface modules.